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Home ‣ Chemical Engineering ‣ Stoichiometry Comments
  • Question

  • A vapor that exists above its critical temperature is termed as a __________ vapor.


  • Options
  • A. saturated
  • B. unsaturated
  • C. gaseous
  • D. sub-cooled

  • Correct Answer
  • gaseous 

    • Stoichiometry problems

    Search Results

    • 1. One micron is equal to __________ cm.

    • Options
    • A. 10-2
    • B. 10-4
    • C. 10-6
    • D. 10-8
      • Discuss
    • 2. 1 kg/m2 is equal to __________ mm water column.

    • Options
    • A. 1
    • B. 10
    • C. 100
    • D. 1000
      • Discuss
    • 3. Concentration of a solution expressed in terms of __________ is independent of temperature.

    • Options
    • A. molarity
    • B. normality
    • C. molality
    • D. none of these
      • Discuss
    • 4. Osmotic pressure of the solution can be increased by

    • Options
    • A. decreasing its temperature.
    • B. increasing the volume of the vessel containing the solution.
    • C. diluting the solution.
    • D. none of these.
      • Discuss
    • 5. The reaction A + B ? C has been conducted in a reactor as shown below.

      The number of boundaries around which material balance can be written, are

    • Options
    • A. 1
    • B. 6
    • C. 3
    • D. 4
      • Discuss
    • 6. The value of the gas-law constant 'R' is 1.987

    • Options
    • A. kcal/kg-mole.°C
    • B. Btu/lb-mole.°R
    • C. kcal/kg-mole.°K
    • D. both (b)& (c)
      • Discuss
    • 7. Recycling in a chemical process facilitates

    • Options
    • A. increased yield
    • B. enrichment of product
    • C. heat conservation
    • D. all (a), (b) &(c)
      • Discuss
    • 8. The vapor pressure of a substance, at its melting point, is __________ in the solid state as compared to that in the liquid state.

    • Options
    • A. less
    • B. more
    • C. same
    • D. either (a) or (b); depends on the nature of the substance
      • Discuss
    • 9. For a neutral solution (pH = 7), the value of[H+] [OH-] is equal to

    • Options
    • A. 0
    • B. 1
    • C. < 1
    • D. > 1
      • Discuss
    • 10. The value of Trouton's ratio (?b/Tb) for a number of substances is 21 (where, ?b = molal that of vaporisation of a substance at its normal boiling point, KCal/kg. mole and Tb = normal boiling point, °K). The Kis-tyakowsky equation is used for calculation of Trouton's ratio of __________ liquids.

    • Options
    • A. polar
    • B. non-polar
    • C. both (a) & (b)
    • D. neither (a) nor (b)
      • Discuss

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